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    Wyświetlanie 1-13 z 13
    Tytuł:
    Application of the Monte Carlo algorithm for solving volume integral equation in light scattering simulations
    Autorzy:
    Kraszewski, Maciej
    Pluciński, Jerzy
    Powiązania:
    https://bibliotekanauki.pl/articles/174771.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    light scattering
    numerical methods
    Monte Carlo
    discrete dipole approximation
    DDA
    Opis:
    Various numerical methods were proposed for analysis of the light scattering phenomenon. An important group of these methods is based on solving the volume integral equation describing the light scattering process. The popular method from this group is the discrete dipole approximation. Discrete dipole approximation uses various numerical algorithms to solve the discretized integral equation. In the recent years, the application of the Monte Carlo algorithm as one of them was proposed. In this research, we analyze the application of the Monte Carlo algorithm for two cases: the light scattering by large particles and by random conglomerates of small particles. We show that if proper preconditioning of the numerical problem is applied, the Monte Carlo algorithm can solve the underlying systems of linear equations. We also show that the efficiency of the Monte Carlo algorithm can be increased by reusing performed computations for various incident electromagnetic waves and the applicability of the Monte Carlo algorithm depends on the particular use case. It is unlikely to be used in the case of light scattering by the large particles due to computational times inferior comparing with the other numerical methods but may become useful in the case of light scattering by the random conglomerates of small scattering particles.
    Źródło:
    Optica Applicata; 2020, 50, 1; 1-15
    0078-5466
    1899-7015
    Pojawia się w:
    Optica Applicata
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Convergence of Monte Carlo algorithm for solving integral equations in light scattering simulations
    Autorzy:
    Kraszewski, Maciej
    Pluciński, Jerzy
    Powiązania:
    https://bibliotekanauki.pl/articles/174254.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    light scattering
    Monte Carlo
    numerical methods
    Opis:
    The light scattering process can be modeled mathematically using the Fredholm integral equation. This equation is usually solved after its discretization and transformation into the system of algebraic equations. Volume integral equations can be also solved without discretization using the Monte Carlo algorithm, but its application to the light scattering simulations has not been sufficiently studied. Here we present the implementation of this algorithm for one and three-dimensional light scattering computations and discuss its applicability in this field. We show that the Monte Carlo algorithm can provide valid and accurate results but, due to its convergence properties, it might be difficult to apply for problems with large volumes or refractive indices of scattering objects.
    Źródło:
    Optica Applicata; 2020, 50, 1; 17-35
    0078-5466
    1899-7015
    Pojawia się w:
    Optica Applicata
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Searching for anti-glioma activity. Ribonucleoside analogues with modifications in nucleobase and sugar moieties
    Autorzy:
    Framski, Grzegorz
    Wawrzyniak, Dariusz
    Jahnz-Wechmann, Zofia
    Szymanska-Michalak, Agnieszka
    Kraszewski, Adam
    Barciszewski, Jan
    Boryski, Jerzy
    Stawinski, Jacek
    Powiązania:
    https://bibliotekanauki.pl/articles/1038738.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    ribonucleoside analogues
    anti-glioblastoma activity
    anticancer ribonucleotides
    Opis:
    Several ribonucleoside analogues with modifications in the nucleobase and sugar moiety have been screened for anti-glioma activity in the T98G glioma cell line using cervical (HeLa) cell line as reference human malignant cells, and lung fibroblast (MCR-5) cell line as non-cancerous reference cells. Among the investigated compounds, ribonucleosides containing 6-chloropurine (3), 7-guanine (5) and a pyrrolopyrimidine (18) as nucleobases, show promising anti-glioma activity with good selectivity indices, and can be considered as lead structures for further anti-cancer studies.
    Źródło:
    Acta Biochimica Polonica; 2016, 63, 4; 765-771
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-13 z 13

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